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NightTone makes your screen more comfortable, enjoyable and healthier by shifting the colors of your display to a warmer, eye-friendly palette. It makes you sleep and feel better.

It's perfect for everyone's health, especially for people with visual perception problems, light sensitivity or discomfort.

• The science behind the app
The monitor's blue light tricks our circadian rhythm (our natural body clock) into thinking that it’s daytime. It suppresses melatonin (that sends "time to sleep" cues) and builds up histamine that helps wake us up, boosts attention and reaction times. In other words, it resets that feeling of tiredness and hurts our sleep cycle.

Just remember: It's bad to be exposed to sleep-inhibiting blue light during the night.

• Predefined color pallets for common scenarios
- Warm orange for late working hours
- Soft black or inverted colors for dark rooms
- Noisy green for long text reading
- Silky blue for rooms with artificial light
- Tender white for movies night or dark photo work
- All colors are adjustable and can be changed to anything you are comfortable with

• Features
- Change the screen brightness and palette to warmer colors
- Configure the display to virtually any color you want
- Invert the screen's colors for better usage in very dark rooms
- Multiple monitors supported
- The app can active itself only during nights (and you can customize the activation hours)
- Start at login, schedule the app and forget it exists. Just enjoy the benefits
- Easy to use and there is absolutely no configuration required

• Support
We read your support emails every day, day by day.
Write with confidence any question, feedback or complain and you will receive an answer in a very short period of time.

What's New

Version 2.5.0

• Bug fixes for multiple monitor setups
• Scheduling improvements (NightTone will go off in the morning even if you manually turned it on during the night)

Ratings and Reviews

4.1 out of 5
10 Ratings
10 Ratings

I like it

I just purchased NightTone. I had been using Night Shift on my iPhone and was looking for the same type of feature for my Mac Pro. I found that, while there is a Night Shift for High Sierra, it only works with Apple monitors (just a guess. I don’t know this as a fact). I use a super-wide LG curved monitor, so my display options do not include Night Shift. So, as an alternative, I’d been using funky blue-blocker reading glasses at night.

This evening, immedicatly after downloading NightTone, I clicked the small cloud/moon icon in the menu bar, selected Turn on Tone Now, and the relief to my eyes was instant; I could actually feel the difference. I was also able to set a schedule so the display will always toggle on/off based on the time of day.



I used this for a few months, and liked it except that it bumps up the screen brightness when it’s switched on, or when you change the color. It goes bright, and then you have to hit the dim button to get it back to the correct brightness. It got annoying to be blinded for a second every time I turned it on. Plus, the color seems to cloud over the black areas of the screen, reducing contrast in a bad way. The scheduler is a nice feature, though I personally didn’t use it much, and I liked the ability to customize the color.

Developer Response

Dear customer,
What you are describing is actually the built in macOS auto-brightness functionality. You can disable it if you go to your Mac's System Preferences > Display > click the Display tab > uncheck the "Automatically adjust brightness" option.
For more details or help you can send me an email at and I will gladly help you.


Perfect for us Night Owls out there

Love the App! With the icon bar at the top, it makes it easy to turn on and off. Would recommend to a follow night dweller seeking eye ease in the dawn hours. Well worth the $2.99, save your eyes people and save plastic with not purcahsing a snap screen cover.


Denk Alexandru
3.1 MB
OS X 10.10 or later, 64-bit processor
Age Rating
Rated 4+
© Denk Alexandru


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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